IEC 62541-6:2020 Opc统一架构 - 第6部分:映射

标准编号:IEC 62541-6:2020

中文名称:Opc统一架构 - 第6部分:映射

英文名称:OPC Unified Architecture - Part 6: Mappings

发布日期:2020-07-13

标准范围

IEC 62541-6:20 20作为IEC 62541-6:20 20 RLV提供,其中包含国际标准及其红线版本,显示了与上一版本相比技术内容的所有变化。IEC 62541-6:20 20指定了IEC TR 62541-2中描述的安全模型、IEC 62541-4中指定的抽象服务定义、IEC 62541-5中定义的数据结构和可用于实现OPC UA规范的物理网络协议之间的OPC统一架构(OPC UA)映射。这第三版取消并取代了2015年出版的第二版。本版构成技术修订版。与上一版相比,此版本包括以下重大技术变更:a)编码:?为PubSub添加了JSON编码(非-可逆);?增加了客户端/服务器的JSON编码(可逆);?增加了对结构中可选字段的支持;?增加了对工会的支持。b)传输映射:?增加了WebSocket安全连接-WSS?增加了对反向连接的支持;?增加了对HTTPS中无会话服务调用的支持。c)不推荐使用的传输(在大多数平台上缺少支持):?带有WS-SecureConversation的SOAP/HTTP(所有编码)。d)添加了JSON Web令牌的映射。e)添加了对节点集模式联合的支持。f)添加了向节点集模式添加/删除节点的批处理操作。g)增加了对变体之外的多维数组的支持。h)增加了十进制数据类型的二进制表示。i)添加了OAuth2授权框架的映射。

IEC 62541-6:2020 is available as IEC 62541-6:2020 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.

IEC 62541-6:2020 specifies the OPC Unified Architecture (OPC UA) mapping between the security model described in IEC TR 62541-2, the abstract service definitions specified in IEC 62541-4, the data structures defined in IEC 62541-5 and the physical network protocols that can be used to implement the OPC UA specification. This third edition cancels and replaces the second edition published in 2015. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
a) Encodings:
? added JSON encoding for PubSub (non-reversible);
? added JSON encoding for Client/Server (reversible);
? added support for optional fields in structures;
? added support for Unions.
b) Transport mappings:
? added WebSocket secure connection – WSS;
? added support for reverse connectivity;
? added support for session-less service invocation in HTTPS.
c) Deprecated Transport (missing support on most platforms):
? SOAP/HTTP with WS-SecureConversation (all encodings).
d) Added mapping for JSON Web Token.
e) Added support for Unions to NodeSet Schema.
f) Added batch operations to add/delete nodes to/from NodeSet Schema.
g) Added support for multi-dimensional arrays outside of Variants.
h) Added binary representation for Decimal data types.
i) Added mapping for an OAuth2 Authorization Framework.

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